;;; Compiled by f2cl version:
;;; ("$Id: f2cl1.l,v 1.209 2008/09/11 14:59:55 rtoy Exp $"
;;;  "$Id: f2cl2.l,v 1.37 2008/02/22 22:19:33 rtoy Rel $"
;;;  "$Id: f2cl3.l,v 1.6 2008/02/22 22:19:33 rtoy Rel $"
;;;  "$Id: f2cl4.l,v 1.7 2008/02/22 22:19:34 rtoy Rel $"
;;;  "$Id: f2cl5.l,v 1.197 2008/09/11 15:03:25 rtoy Exp $"
;;;  "$Id: f2cl6.l,v 1.48 2008/08/24 00:56:27 rtoy Exp $"
;;;  "$Id: macros.l,v 1.106 2008/09/15 15:27:36 rtoy Exp $")

;;; Using Lisp International Allegro CL Enterprise Edition 8.1 [64-bit Linux (x86-64)] (Oct 7, 2008 17:13)
;;;
;;; Options: ((:prune-labels nil) (:auto-save t)
;;;           (:relaxed-array-decls t) (:coerce-assigns :as-needed)
;;;           (:array-type ':array) (:array-slicing t)
;;;           (:declare-common nil) (:float-format double-float))

(in-package :clml.lapack)


(let* ((one 1.0))
  (declare (type (double-float 1.0 1.0) one) (ignorable one))
  (defun dgetrf (m n a lda ipiv info)
    (declare (type (array double-float (*)) a)
     (type (array f2cl-lib:integer4 (*)) ipiv)
     (type (f2cl-lib:integer4) info lda n m))
    (f2cl-lib:with-multi-array-data ((ipiv f2cl-lib:integer4
                                      ipiv-%data% ipiv-%offset%)
                                     (a double-float a-%data%
                                      a-%offset%))
      (prog ((i 0) (iinfo 0) (j 0) (jb 0) (nb 0))
            (declare (type (f2cl-lib:integer4) i iinfo j jb nb))
            (setf info 0)
            (cond ((< m 0) (setf info -1))
                  ((< n 0) (setf info -2))
                  ((< lda
                      (max (the f2cl-lib:integer4 1)
                           (the f2cl-lib:integer4 m)))
                   (setf info -4)))
            (cond ((/= info 0)
                   (xerbla "DGETRF" (f2cl-lib:int-sub info))
                   (go end_label)))
            (if (or (= m 0) (= n 0)) (go end_label))
            (setf nb (ilaenv 1 "DGETRF" " " m n -1 -1))
            (cond ((or (<= nb 1)
                       (>= nb
                           (min (the f2cl-lib:integer4 m)
                                (the f2cl-lib:integer4 n))))
                   (multiple-value-bind (var-0 var-1 var-2 var-3 var-4
                                         var-5)
                       (dgetf2 m n a lda ipiv info)
                     (declare (ignore var-0 var-1 var-2 var-3 var-4))
                     (setf info var-5)))
                  (t
                   (f2cl-lib:fdo (j 1 (f2cl-lib:int-add j nb))
                                 ((> j
                                     (min (the f2cl-lib:integer4 m)
                                          (the f2cl-lib:integer4 n)))
                                  nil)
                                 (tagbody
                                     (setf jb
                                           (min (the f2cl-lib:integer4
                                                     (f2cl-lib:int-add (f2cl-lib:int-sub (min (the f2cl-lib:integer4
                                                                                                   m)
                                                                                              (the f2cl-lib:integer4
                                                                                                   n))
                                                                                         j)
                                                                       1))
                                                (the f2cl-lib:integer4
                                                     nb)))
                                     (multiple-value-bind (var-0 var-1
                                                           var-2 var-3
                                                           var-4 var-5)
                                         (dgetf2
                                          (f2cl-lib:int-add (f2cl-lib:int-sub m
                                                                              j)
                                                            1)
                                          jb
                                          (f2cl-lib:array-slice a
                                                                double-float
                                                                (j j)
                                                                ((1
                                                                  lda)
                                                                 (1
                                                                  *)))
                                          lda
                                          (f2cl-lib:array-slice ipiv
                                                                f2cl-lib:integer4
                                                                (j)
                                                                ((1
                                                                  *)))
                                          iinfo)
                                       (declare
                                        (ignore var-0 var-1 var-2 var-3
                                         var-4))
                                       (setf iinfo var-5))
                                     (if (and (= info 0) (> iinfo 0))
                                         (setf info
                                               (f2cl-lib:int-sub (f2cl-lib:int-add iinfo
                                                                                   j)
                                                                 1)))
                                     (f2cl-lib:fdo (i j
                                                    (f2cl-lib:int-add i
                                                                      1))
                                                   ((> i
                                                       (min (the f2cl-lib:integer4
                                                                 m)
                                                            (the f2cl-lib:integer4
                                                                 (f2cl-lib:int-add j
                                                                                   jb
                                                                                   (f2cl-lib:int-sub 1)))))
                                                    nil)
                                                   (tagbody
                                                       (setf (f2cl-lib:fref ipiv-%data%
                                                                            (i)
                                                                            ((1
                                                                              *))
                                                                            ipiv-%offset%)
                                                             (f2cl-lib:int-add (f2cl-lib:int-sub j
                                                                                                 1)
                                                                               (f2cl-lib:fref ipiv-%data%
                                                                                              (i)
                                                                                              ((1
                                                                                                *))
                                                                                              ipiv-%offset%)))
                                                     label10))
                                     (dlaswp (f2cl-lib:int-sub j 1) a
                                      lda j
                                      (f2cl-lib:int-sub (f2cl-lib:int-add j
                                                                          jb)
                                                        1)
                                      ipiv 1)
                                     (cond ((<= (f2cl-lib:int-add j jb)
                                                n)
                                            (dlaswp
                                             (f2cl-lib:int-add (f2cl-lib:int-sub n
                                                                                 j
                                                                                 jb)
                                                               1)
                                             (f2cl-lib:array-slice a
                                                                   double-float
                                                                   (1
                                                                    (f2cl-lib:int-add j
                                                                                      jb))
                                                                   ((1
                                                                     lda)
                                                                    (1
                                                                     *)))
                                             lda j
                                             (f2cl-lib:int-sub (f2cl-lib:int-add j
                                                                                 jb)
                                                               1)
                                             ipiv 1)
                                            (dtrsm "Left" "Lower"
                                             "No transpose" "Unit" jb
                                             (f2cl-lib:int-add (f2cl-lib:int-sub n
                                                                                 j
                                                                                 jb)
                                                               1)
                                             one
                                             (f2cl-lib:array-slice a
                                                                   double-float
                                                                   (j
                                                                    j)
                                                                   ((1
                                                                     lda)
                                                                    (1
                                                                     *)))
                                             lda
                                             (f2cl-lib:array-slice a
                                                                   double-float
                                                                   (j
                                                                    (f2cl-lib:int-add j
                                                                                      jb))
                                                                   ((1
                                                                     lda)
                                                                    (1
                                                                     *)))
                                             lda)
                                            (cond ((<= (f2cl-lib:int-add j
                                                                         jb)
                                                       m)
                                                   (dgemm
                                                    "No transpose"
                                                    "No transpose"
                                                    (f2cl-lib:int-add (f2cl-lib:int-sub m
                                                                                        j
                                                                                        jb)
                                                                      1)
                                                    (f2cl-lib:int-add (f2cl-lib:int-sub n
                                                                                        j
                                                                                        jb)
                                                                      1)
                                                    jb (- one)
                                                    (f2cl-lib:array-slice a
                                                                          double-float
                                                                          ((+ j
                                                                              jb)
                                                                           j)
                                                                          ((1
                                                                            lda)
                                                                           (1
                                                                            *)))
                                                    lda
                                                    (f2cl-lib:array-slice a
                                                                          double-float
                                                                          (j
                                                                           (f2cl-lib:int-add j
                                                                                             jb))
                                                                          ((1
                                                                            lda)
                                                                           (1
                                                                            *)))
                                                    lda one
                                                    (f2cl-lib:array-slice a
                                                                          double-float
                                                                          ((+ j
                                                                              jb)
                                                                           (f2cl-lib:int-add j
                                                                                             jb))
                                                                          ((1
                                                                            lda)
                                                                           (1
                                                                            *)))
                                                    lda)))))
                                   label20))))
            (go end_label)
       end_label (return (values nil nil nil nil nil info))))))

(in-package #-gcl #:cl-user #+gcl "CL-USER")
#+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
(eval-when (:load-toplevel :compile-toplevel :execute)
  (setf (gethash 'fortran-to-lisp::dgetrf
                 fortran-to-lisp::*f2cl-function-info*)
        (fortran-to-lisp::make-f2cl-finfo :arg-types '((fortran-to-lisp::integer4)
                                                       (fortran-to-lisp::integer4)
                                                       (array
                                                        double-float
                                                        (*))
                                                       (fortran-to-lisp::integer4)
                                                       (array
                                                        fortran-to-lisp::integer4
                                                        (*))
                                                       (fortran-to-lisp::integer4))
          :return-values '(nil nil nil nil nil fortran-to-lisp::info)
          :calls '(fortran-to-lisp::dgemm fortran-to-lisp::dtrsm
                   fortran-to-lisp::dlaswp fortran-to-lisp::dgetf2
                   fortran-to-lisp::ilaenv fortran-to-lisp::xerbla))))

